CATElectrical Parts

2129347 12V 55W — Cat 320C 320D

This is a 12-volt, 55-watt bulb, commonly used for lighting applications on heavy equipment. It is manufactured to meet quality standards, providing reliable illumination where a failing bulb would result in a loss of visibility. Operators may notice a specific light, such as a headlight or work lamp, failing to illuminate, thereby reducing visibility during operation in low-light conditions.

12V 55W – Part No 2129347 – CAT Spare Part
Part Specifications
BrandCAT
CategoryElectrical Parts
ConditionAftermarket — OEM Specification
DispatchSame-day from Mumbai (before 3 PM IST)
GST InvoiceAvailable — all orders
Export DocsCommercial invoice, packing list, COO

Compatible Models

Always verify with serial number before ordering.

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Installation & Application Notes

Disconnect main battery before working on electrical components. Use dielectric grease on all connector pins. Check ground connections — most electrical faults trace to poor grounds. Test with multimeter before installing new parts.

Always consult the OEM service manual for model-specific torque values and procedures. WhatsApp our technical team if you need fitment guidance.

Part TypeBulb
MaterialGlass, Filament, Metal Base
ApplicationLighting (e.g., headlights, work lamps)
Service LifeReplace as needed based on burn-out
CompatibilityOEM specification
ConditionNew — CTP aftermarket replacement

Failure Symptoms

The most immediate symptom of a failed bulb is the absence of light from the affected fixture. If left unaddressed, this reduces the operator's visibility, especially during nighttime or in dusty/poor conditions. The consequence is an increased risk of collision or operational error due to inadequate lighting.

Installation Tip

Handle the bulb carefully by its base to avoid touching the glass, as oils from your skin can cause hot spots and premature failure. Ensure the bulb is properly seated in the socket before restoring power.

Service Note

Inspect the light fixture's housing and lens for cracks or damage, and check the wiring and connectors for any signs of corrosion or wear.